Through testing the Munsell color index and the static fabric pressure of the tight pants, the paper has established eight related model with the method of the stepwise regression analysis. The result shows that (a) The static garment pressure of the stretch knitted pants can be predicted with stepwise regression models which are using the Munsell color index and fabric specifications as input parameters, and prediction models have the high adjusted correlation coefficients, and have smaller errors between predicted values and measured values. (b) The static garment pressure of the stretch knitted pants has some relationship with dynamic surface wetness of fabrics. (c)The relationship between the static garment pressure of the stretch knitted pants and the weft density is not obvious.